Clutch mechanism.



8 R. BENJAMIN & C. PEARSON. CLUTCH MECHANISM.

- APPLICATION FILED APR. 24, 1912.

1,21 9,225. I Patented Mar. 13, 1917.

2 shins-snail 1.

wflrws esn- Ber; figseganwy B. R. BENJAMIN & 0. PEARSON;

CLUTCH MECHANISM.

APPLICATION FILED APR. 24. 1912.

Patnted Mar. 13, 1917.

2 SHEETS-SHEET 2.

' UNITED srarasrarnnrr OFFICE.

BERT R. BENJAMIN, OF OAK PARK, AND CHARLES EEARSON,

OF CHICAGO, ILLINOIS,

ASSIGNORS TO INTERNATIONAL HARVESTER COMPANY'OF NEW JERSEY, A COR- PORATION OF NEW JERSEY.

CLUTCH MECHANISM.

Specification of Letters Patent. Patented B131, 13, 191%.

'Application filed April 24, 1912. Serial No; 692,879.

To all whom it may concern:

Be it known that we, BERT R. BENJAMIN and CHARLES PEARSON, citizens of the United States, residing at Oak Park and Chicago, respectively, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Clutch Mechanism,

become inoperative from wearing of theparts through continued use thereof. These objects are attained by means of mechanism, one embodiment of which is illustra ed in the accompanying drawings, in wh1ch Figure 1 represents a vertical sectionalelevation of a traction wheel designed for use in connection with a reaping machine, having a sprocket wheel connected therewith by means of our improved mechanism;

Fig. 2 represents a side elevation of Fig.

1 illustrating the operation of the pawl controlling mechanism;

Fig. 3 is a similar .view representingthe pawl in an inoperative position;

Fig. 4 is a detached detail of a brake mem-- ber designed as asupport for the clutch shipping lever;

' Fig. 5 is a side elevation of Fig. 4;

Fig. 6 is a detached detail illustrating the form of the clutch shipping lever and the manner of connecting it with the pawl controlling mechanism; and i Fig. 7 represents a side elevation of Fig.6.

The same reference characters designate like parts throughout the several views.

1 designates a traction wheel designed for use in connection with a reaping machine, 2 an axle upon which said wheel is rotatably mounted, and 3 a sprocket wheel mounted upon said axle adjacent said wheel and adapted to rotate therewith. The hub 4 of the traction wheel is provided with a flange portion 5 at its inner end, to which issecured a pawl carrying plate 6 by means of bolts 7. mounted upon the plate and supported 8 represents pawls pivotally against endwise movement by means of a common form of curved wings 9 integral with the hub of'the plate 6 and in which the heel portions of the pawls are seated, and 10 compression springs interposed between the opposite ends of the pawls and radially proecting ears 11 integral with the hub of the plate 1n a manner to normally swing the pawls about their pivotal connection in a direction to cause them to engage with the toothed rim portion 12 integral with the sprocket wheel 3 in a common way. 13 represents a pawl controllingmember substantially U-shaped and formed from two separable members that are secured together by means of rivets 14, the head portions of the separate members having a semicircular form adapted to receive the hub'portion 15 of a clutch shipping lever 16 when the two parts are assembled in operative relation, the hub of the clutch shipping lever being provided with flange portions 17 upon opposite sides of the head of the pawl controlling member that operate to connect said controlling member with said lever in a manner permitting the latter to rotate freely withinthe axial opening in the pawl controlling member and to compel the latter to follow a V longitudinal movement of said lever relative to the axis thereof. 18 represents a bracket member having an arm 19 whereby it is secured to a part 20 that may form a fixed part of the frame of a harvesting machine, and a sleeve portion 21 that receives the axle member ;2', the sleeve being'secured to the axle member by means of a key 22. The clutch shipping lever 16 is providedwith an axial opening that receives the sleeve 21 in a manner permitting said lever to turn freely thereon. 23 represents spirally arranged ribs upon the. periphery of the sleeve. upon opposite sides thereof, the ribs being ill",

ranged in the form of threads and adapted to engage with threaded sections 24 formed upon the inner wall of the axial opening in the clutch shipping lever in a manner to cause said lever to move longitudinally upon said sleeve relative to the axis thereof and thereby project or retract the pawl controlling member toward or from the pawls.

The pawl controlling members receive the hub of the traction wheel between them. and their inner ends -are slidably received by openings in the pawl carrying plate and rivere-

iber

provided with inclined wedge shaped portions 25 that are adapted to engage with the outside surface of the pawls in a manner to swing the latter against the force of the compression springs in a direction to release said pawls from engagement with the clutch teeth upon the sprocket wheel when the clutch shipping lever is turned. about its axis in one direction, and to permit said pawls to reengage with said sprocket wheel when said lever is turned in an opposite direction. In operation the pawls 8 are normally pressed, by means of the springs 10, in direction to engage with the toothed. rim l2, and will engage therewith when the pawl controlling member 13 is retracted by means of the lever 16 being turned in one direction and coacting with the spirally arranged ribs '23 upon the fixed sleeve 21, as shown in Figs. 1 and 5, when the lever in is turned in an opposite direction, the member 13 operates to disengage the pawls, as shown in Fig. 3.

\Vhile we have in this application specifically described one embodiment of our invention, it is to be understood that the form shown is used for purposes of illustration and may be modified without departing from the spirit of the invention, it being our intention to include all such modifications within the scope of the appended claims.

WVhat we claim as our invention, and desire to secure by Letters Patent, is:

1. In combination, a shaft, a driven member thereon, a harvester main wheel carried on said shaft and disposed at one side of said driven member, ratchet and pawl clutch mechanism intermediate said main wheel and said driven member, and a pawl actuating member rotatable with said main wheel and -reciprocable therethrough operable from the far side thereof from said driven member.

*2. In a clutch mechanism, a shaft, a driving member thereon, a driven member thereon, clutch mechanism intermediate said drivmg and driven members, a sleeve encircling said shaft disposed on the opposite side of said driving member from said driven member; a clutch actuating member journaled on said sleeve, and means for converting a rotary movement of said sleeve into a reciprocatory movement of the same.

3. In a clutch mechanism, a shaft, a driving member carried thereon, a driven member mounted thereon, one of said members having a ratchet surface formed thereon and the other carrying a spring pressed pawl normally engaging said ratchet, a pawl controlling member engaging said pawl, a clutch operating member operatively connected to said pawl controlling member and rotatably mounted on said shaft, and operative connections operatively connected to said operating member for converting a rotary movement of the same into a reciprocatory movement of said pawl controlling m ber.

4. In a clutch mechanism, shaft, a d ing member carried thereon, a driven in her journaled on said shaft, one of said m hers-having a ratchet surface formed th on and the other carrying a plurality spring pressed pawls normally .engag said ratchet, a pawl controlling melt slidable axiaily of said driving men holding said pawls out of engagement v said ratchet, a sleeve carried on said sh an operating member operativelyconne to said pawl controiling member and tatably mounted on said sleeve, and me intermediate said operating member said sleeve converting a rotary moven of said operating member into a recipr tory movement of said pawl control member.

5. In a clutch mechanism, a shaft, a d ing member carried thereon, a driven m ber journaled on said shaft adjacent 1 driving member, the hub portion of driven member being provided with a having pawl engaging teeth thereon, spi pressed pawls pivotally mounted upon end of the hub of said driving member normally engaging the teeth on said rim, :1 movable pawl controlling member slid axially of said driving member and o able from the opposite side of said dr'i member from said driven member actua said pawls to efiect disengagement the from said teeth when said controlling n her is moved in one direction and relea said pawls when said controlling memb moved in the opposite directionl 6. In a clutch mechanism, shaft, a ing member carried thereon, driven 11 her carried thereon, a bracket encircling shaft on the opposite side of said dri member from said driven member, cl mechanism disposed between said dri and driven members, a sleeve rotat mounted on said bracket, a clutch eon ling member rotatably mounted on sleeve and rotatable with said driving 11 ber, and means intermediate said sleeve bracket whereby upon rotation of the 1 said clntch controlling member is actu 7. In a clutch mechanism, a shaft, a 1 ing member carried thereon, a driven r ber carried thereon, clutch mechanisn termediate said driving and driven mem a bearing bracket for said shaft dispose the opposite side of said driving me: from said driven me -ber, a grooved's carried on said bracket, a double arm c: actuating member having a collar rota in the groove in said sieeve and its arms posed parallel to the axis of said dri member, and means disposed between sleeve and said bracket for converting tary movement of said sleeve into a rec catory movement of the same and said clutch actuating member.

8. In a clutch mechanism, a driving mem ber, a cooperating driven member, one of said members having a serrated face and the other having a clutch pawl engageable with said serrated face, a shaft extending through said driving and driven members, a bracket receiving said shaft and disposed on the opposite side of said drivingmember from said driven member, a sleeve rotatable on said bracket, a clutch actuating member journaled on said sleeve having a pawl engaging member disposed parallel to the axis of said driving member, and means intermediate said bracket and sleeve whereby a rotary movement of said sleeve is converted into a reciprocatory movement of said clutch actuating member.

9. A clutch mechanism having, in combination, a fixed shaft, a driving member journaled upon said shaft, a driven member journaled upon said shaft adjacent said driving member, the hub portion of said driven member being provided with a rim portion having pawl engaging teeth thereon, spring-pressed pawls pivotally'mounted upon one endof the hub of said driving member and adapted to engage with said teeth, a pawl controlling member slidably mounted upon the hub of said driving member and having one end thereof adapted to engage with said pawls in a manner to effect a disengagement thereof when said controlling member is moved in one direction, a bracket member secured to said fixed shaft, a clutch controlling lever rotatable about the naled upon said shaft, a

,member and adapted to axis of said shaft operatively connected to said pawl controlling member, and operative connections between said lever and said bracket converting rotary lever in opposite directions into a longitudinal movement of said pawl controlling member to engage or disengage the latter from-"the pawls.

10. A clutch mechanism nation, a fixed shaft, a driving member j ourdriven member journaled upon said shaft adjacent said driving member, the hub portion of said driven member being. provided. with a rim portion having pawl engaging teeth thereon, spring-pressed pawls pivotally mounted upon one-end of the hub of said driving engage with said teeth, a U-shaped, pawl controlling member slidably mounted upon the hub of said driving member, the leg portions of said controlling member being provided with wedgeshap'ed portions adapted to engage with said pawls, and the head portion thereof provided with an axial opening,-a bracket member secured to said fixed shaft and provided with a.' sleeve portion, and a clutch controlling lever, rotatably mounted upon said sleeve and movable longitudinally thereof, said lever having a hub portion received by the axial opening in controlling member.

BERT R. BENJAMIN. CHARLES PEARSON. \Vitnesses:

RAY PATTISON, FRANK A. ZABILKA.

movements of said the hub'of said pawl 46 having, m combi- 

